TMT: Cross-domain Semantic Segmentation with Region-adaptive Transferability Estimation

• URL: http://arxiv.org/abs/2504.05774v3
• Date: Wed, 15 Oct 2025 03:10:49 GMT
• Title: TMT: Cross-domain Semantic Segmentation with Region-adaptive Transferability Estimation
• Authors: Enming Zhang, Zhengyu Li, Yanru Wu, Jingge Wang, Yang Tan, Guan Wang, Yang Li, Xiaoping Zhang,
• Abstract summary: We propose a region-adaptive framework designed to enhance cross-domain representation learning through transferability guidance.<n>First, we dynamically partition the image into coherent regions, grouped by structural and semantic similarity, and estimates their domain transferability at a localized level.<n>Then, we incorporate region-level transferability maps directly into the self-attention mechanism of ViTs, allowing the model to adaptively focus attention on areas with lower transferability and higher semantic uncertainty.
• Score: 27.208145888390117
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recent advances in Vision Transformers (ViTs) have significantly advanced semantic segmentation performance. However, their adaptation to new target domains remains challenged by distribution shifts, which often disrupt global attention mechanisms. While existing global and patch-level adaptation methods offer some improvements, they overlook the spatially varying transferability inherent in different image regions. To address this, we propose the Transferable Mask Transformer (TMT), a region-adaptive framework designed to enhance cross-domain representation learning through transferability guidance. First, we dynamically partition the image into coherent regions, grouped by structural and semantic similarity, and estimates their domain transferability at a localized level. Then, we incorporate region-level transferability maps directly into the self-attention mechanism of ViTs, allowing the model to adaptively focus attention on areas with lower transferability and higher semantic uncertainty. Extensive experiments across 20 diverse cross-domain settings demonstrate that TMT not only mitigates the performance degradation typically associated with domain shift but also consistently outperforms existing approaches.

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